Fix bug: Scroll Effect issues in Workspace

Repro:
 - Set HomeScreen Scroll Effect to Flip or Stack
 - Create at least 3 pages in HomeScreen
 - Switch rapidly back and forth between pages
 - Observe certain pages will be transparent

Change-Id: I405a113fb947b193706d10921c2cf6ee7bb82b4f

1 files changed, 3 insertions, 4 deletions

diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 27c9e06f9..b7b0e5219 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -3185,10 +3185,10 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
                     v.setAlpha(alpha);
                 }
 
-                // If the view has 0 alpha, we set it to be invisible so as to prevent
+                // If the view has 0 alpha, we move it off screen so as to prevent
                 // it from accepting touches
                 if (alpha == 0) {
-                    v.setVisibility(INVISIBLE);
+                    v.setTranslationX(v.getMeasuredWidth() * -10f);
                 } else if (v.getVisibility() != VISIBLE) {
                     v.setVisibility(VISIBLE);
                 }
@@ -3230,8 +3230,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
                         v.setVisibility(VISIBLE);
                     }
                 } else {
-                    v.setTranslationX(0f);
-                    v.setVisibility(INVISIBLE);
+                    v.setTranslationX(v.getMeasuredWidth() * -10f);
                 }
             }
         }